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Mathematics, 26.10.2019 16:43 marandasullivan

Quick start company makes 12-volt car batteries. after many years of product testing, the company knows that the average life of a quick start battery is normally distributed, with a mean of 43.2 months and a standard deviation of 7.7 months. (a) if quick start guarantees a full refund on any battery that fails within the 36-month period after purchase, what percentage of its batteries will the company expect to replace? (round your answer to two decimal places.)

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